Analysis Of Income And Expense [Abstract]
| Concept | 2023-09-01 to 2024-08-31 | 2022-09-01 to 2023-08-31 | 
|---|---|---|
| Analysis of income and expense [abstract] | ||
| Material income and expense [abstract] | ||
| Finance income (cost) | — | — | 
| Other finance income (cost) | 
                                                1 280
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                819,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Expenses by nature [abstract] | ||
| Raw materials and consumables used | 
                                                101 094
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                118 316
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Services expense | 
                                                54 905
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                56 000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Classes of employee benefits expense [abstract] | ||
| Employee benefits expense | 
                                                27 481
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                21 856
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||
| Depreciation and amortisation expense [abstract] | ||
| Depreciation and amortisation expense | 
                                                6 167
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                5 507
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Impairment loss (reversal of impairment loss) recognised in profit or loss | 
                                                1 674
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1 731
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Tax expense other than income tax expense | 
                                                1 883
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1 744
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | 
| Disclosure of attribution of expenses by nature to their function [abstract] | ||
| Disclosure of attribution of expenses by nature to their function [line items] | ||
| Miscellaneous other comprehensive income [abstract] | ||
| Other comprehensive income, attributable to owners of parent | 
                                                1,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Other comprehensive income, attributable to non-controlling interests | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||
| Share of profit (loss) of joint ventures accounted for using equity method | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||
| Comprehensive income, attributable to owners of parent | 
                                                29 679
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                19 353
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||
| Comprehensive income, attributable to non-controlling interests | 
                                                975,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — |